Dumping-grate.



. G. H. TEACHER, JR.

DUMPING GRATB. APPLICATION PILED 0GT.22, 1912.

Patented Sept. 1, 191

TTORNEY.

WITNESSES some LUBE, i

J12 a itizou of the Unite'l "fuel feed magazine prov;

emote-E e1; TEACHER, me, OF ALBAtuY, NEW YGRK,

lililfENl iiSSiGNOR 1T0 GEQR-GE H. v

TH-QGEEE, $21., GE ALBANY, 031K.

I omiemo-oeime epecifieetion of? Letters Patent.

Xatented @ept. 11,, flfiifl ti Application filed ootoner 22, 1912.Elerial 2336. 327,146.

fil al? whom it may conceive: I I lMZ- it known that L GEORGE Stete'sresiding "at Al uiy county of Allmny, and. State 053- fflew i'oi'lq,have invented. celtolu not; and

' useful luiprovemoute in l iu"i"ipii'ig -Gro-'tes; fend E oo hereby d.iull, clear, and iiiW-e;itiou such in the art to "which mid use thesome.

are the following to be exact description of the Will enable othersskilled Jilly hive: in u to certain new anti useful imp Wemems in thatclzuas oi futneees wherein the fuel is supplied from 'ziF-ioo to the topof inclined grate $111,

which inol' V m. uumping; grates located at or ones.

erly, my invention relates to, a

n and arrangement of parts. co do ing grates may be i'earlily cl o'iithcii' coiitcuts, While at the the fuel outlie inclined gratesuirfooesie held in piece llllSChfilQjfi into the :LSll pit.

In the accompanying drawing, Figure 1 represents, oss-secuiiieu a,fuiiiooeof the general type re-' 1:1ecl. to, provided with thumpinggrate embodying my improyer lltS; Fig. 2 represents, partly in sectionin l partly in elevation, a TlOW of the clump eomewlmt larger sca e andillueti': the dumping position of the repiesents a top grate, on ites.ui dotted lines plan view, 01: 'e' portion or the dumping grate Similarletters reference iilicate simits throughout the several vie-W ring tothe drawing, 1) repres nts at with. in feed screw \TllOSQ conveyor mid.llirtiiig l'ileiies c ooueiet each oi a number oi? sections mount;

eel within eifmn o of which the suppoit J constitutes one of the SMlOmembers.

is fir Home in iii 's. and 3,tiie h not led with cross-piec connect :3 trort or bill. J with the like summit H. TEACHER, I

it oppertains to make uecl grate surfaces, in 'turii,

against acciclentzt l a, series of ii cliviciual sections each locatedWithin one of the subdivisions of the frame, All of the individual gratesections are alike in construction and mode of operation, aml eachindividual section is siclzipte l to be inclependently operated by itsown dumping bar, so that at greater or less mun lger of sections may beiumpecl, as necessity may require. As shown in Figs. 2 and 3, the gratesui faioe of the individual dumping grate sections is made up of twoleaves is 1'2. cost with hubs and with guclgeons j) which letter engageWithin openings in the cross 39ers Z, so e e to be adopted to be rockedthere in; The leaves 70, n are protidecl with suitable air apertures, asdeeii'ed as indicated. in l figefi and 3. They are likewise provicled.pespectitely with depending arms g 2" which. sire pivotelly connected toa bell emu" lever (iv The bell crank lever is provide/cl with a Wristpin 3 which engages alost motion slot n of the clumping bar, 4), whichlatter may conveniently be operated fIOIII WllZlIOUt by means of theoperating handle to.

lVnen it is desired to dump i. to the ash it the ashes andclinkerreceivecl from the inclined clumping grate sections, the clumping bar w is pulled outwardly by the operetor whereupon the pains ermugethem-' selves in the position shown iii dotted lines in Fig. 2. That isto say, the leaf is drops, ,.\end the leaf w, rises, As a cooeequeece,the tile-13.19021 the inclined grate surfaces 1 is held againstoccidental descent into the ash pit, and the ashes one clinker upon theleaf 1c is :luuqoecl. The length. of the several le- Vere; constitutingthe system is preferably so chosen that when the grate is-i-n the fullclumping position between the wrist pin we the gudgeons 3? 013 the leafn is carried .loeyoml thecommon plwfie. in. which .uid wrsiet pin andgugeons ilucl themselti'es so that there is no tendency for the grate toresume its horizontal position, the gi'erts being substantially lockeolin the (humping position until subsequently returneglto their originallocation by the who pushes in the (lumping bar '21;

operator for that puicpose.

Having/thus describecl i claim is":

1 A dumping for the pucposes fie scribed/coon) .Lsing leavescoiperetiixg to form 3. gr:

my invention What or bull; so that the grate is made up of intermediatejoint ui'faoe e118. mountecl-to rock in the leaves of the grate, oneprojection being longer than the other, to whichprojections the bellcrank lever is jointed .to swin said leaves open when the bar is pulleda d to lock'said leaves in open position until sa1dbar is moved inwardagain; substantially as described.

2. A dumping gratefor the purposes described, comprising leavescooperating to form a grate surface and mounted to rock in oppositedirections, the one upwardly and the otherdownwardl and means forrocking said leaves simu taneou'sly, said means consisting of a dumpingbar, a bell crank lever to which said baris operatively connected, adepending arm extending downwardly from the axis of one of the rockingleaves, a dependingarm extending downwardly from the forward part of theother leaf, said depending arms being jointed to said bell crank lever,the length of said parts being such that the parts are substantiallylocked in the dumping position until the operator pushes in on the saiddumping bar substantially as described.

3. A dumping grate for the purposes described, comprising leavescooperating to form a grate surface and mounted to rock in oppositedirections, the one upwardly and the other downwardly, and means forrocking said leaves simultaneously, said means consisting of a dumpingbar, a bell crank lever carrying a wrist pin by which said dumping baris connected to the bell crank lever, a depending arm extendingdownwardly from the axis of one of the rocking leaves, and a dependingarm extending downwardly from the forward part of the other leaf, saiddepending arms being jointed to the said bell cranklever in such mannerthat when the grate is dumped the wrist pin and the axis of the upwardlris ing' leaf shall lie in a common plane elow the intermediate joint;substantially as described. I

4. In a furnace, the combination of a central magazine, a feed screwtherein, an inclined grate surface down which" the coal transported andlifted by said screw may fall, a horizontal grate surface at the base ofsaid inclined grate surface, said horiand the other downwardl l i zontalgratesurjface comprising a plurality V of leaves grouped in pairs,-siiijd leaves being arranged to swing'about aaesrparallel wlih saidscrew conve *er one s f in upwar y 3 the grate is to'be dumped, theupwa' y swinging leaf being provided'with a vertically depending armattached near theaizis thereof, and the other leaf being provided with ashorter depending. arin attached at the forward part thereof, said armsbeing connected by a bell crank, and a horizontal pull bar having a lostmotion connection with. said bell crank and projecting outward throughthe side of the furnace and under the'downwardlyswinging leaf, said bellcrank and its related parts being -so proportioned that after the gratehas been dumped the parts will be substantially locked in the. dumpingposition until the operator pushes in again 'on the bar whereby theaction is controlled.

5. A dumping grate for use in conjunction with a central-magazine and agrate in-- v clined tow'ard the side of the fire box and over which coaldelivered from said magazine may fall, said dumping grate comprisingparallel supporting bars Witli cross pieces between and a plurality ofpairs of leaves pivotally connected with said cross pieces and adaptedto swing oneaipward and the other downward, the upwardly swinging leafhavinga vertically depending arm attachcd near its pivotal support, andthe other leaf having a shorter arm attached near its forward part, saidarms being connected byv a link bent at'rightangles, a horizontaldumping bar, said link serving as .a hll. crank for ivotal connectionwith said dumpingbar, tliis connection providing for lostmotion' whenthe bar is ulled to dump the grate, said dumping bar eing arranged toextend horizontally below the downwardly swingin tleaf andout throughthe wall of the fire )ox there to be accessible to the operator and theseveral pivotal. points of said leaves and the'link hem positioned tocause said parts to lock int c. dumpin pos tion until the pull bar ispushed inwar s am. p

In testimon whereof I afix in presence 0 two witnesses.

GEORGE Timci nn, JR.

my signature,

- Witnesses: I

ARTHUR R. ST. JOHN, M. A. B1LL.

